How to cut concrete slab in backyard?

nvelaga

Hello Experts, 

I am looking to cur the conrete slab highlighted in yellow dotted lines, so that it will match to the newly layed concrete pathway. 

Are there any suggestions ? 

I thinking use Demolition Saw to create a seperation and then get rid of remaining using sledge hammer or jack hammer. 

Does it work ? 

Jewelleryrescue

Hi @nvelaga 

You are on the right line of thinking.

But your slab is only 75mm thick so if you  use and angle grinder either even a 100mm disk will work with a diamond or masionary abrasive or multipurpose  disk.  Use a  circular  saw too  but the diamond  blade is bigger and more expensive for a  one off cut.

The  purpose of the cut line  is to proved a neat controlled fracture line so when you use  a jack hammer closer to the cut line it will  break along the line only.

Use the sledge or  jack  hammer to break up larger lump so they are easier to  handle  Smashing em too small is creating  more work so stop at largest managable size/

The last 20mm of the uncut path will be raggedly as it wont be cut  all the way though  so just  use  your angle grinder and  blade to tidy it up flat.